Re-added transparency & composition parameter, even though we never use it and just fall back to the default reactivity mask, we officially support it as an input now.

Assets/Scripts/Fsr2.cs

@@ -152,6 +152,7 @@ namespace FidelityFX
             public RenderTargetIdentifier? MotionVectors;
             public RenderTargetIdentifier? Exposure;
             public RenderTargetIdentifier? Reactive;
+            public RenderTargetIdentifier? TransparencyAndComposition;
             public RenderTargetIdentifier? Output;
             public Vector2 JitterOffset;
             public Vector2 MotionVectorScale;

Assets/Scripts/Fsr2Context.cs

@@ -130,6 +130,7 @@ namespace FidelityFX
             // TODO: auto-exposure flag
             if (dispatchParams.Exposure == null) dispatchParams.Exposure = _resources.DefaultExposure;
             if (dispatchParams.Reactive == null) dispatchParams.Reactive = _resources.DefaultReactive;
+            if (dispatchParams.TransparencyAndComposition == null) dispatchParams.TransparencyAndComposition = _resources.DefaultReactive;
             Fsr2Pipeline.RegisterResources(commandBuffer, _contextDescription, dispatchParams);
             
             SetupConstants(dispatchParams, resetAccumulation);

Assets/Scripts/Fsr2Controller.cs

@@ -165,6 +165,7 @@ namespace FidelityFX
             _renderCamera.aspect = (Screen.width * _originalRect.width) / (Screen.height * _originalRect.height);
             _renderCamera.rect = new Rect(0, 0, _originalRect.width * _renderSize.x / _displaySize.x, _originalRect.height * _renderSize.y / _displaySize.y);
 
+            // Set up the parameters to auto-generate a reactive mask
             if (generateReactiveMask)
             {
                 _genReactiveDescription.ColorOpaqueOnly = null;
@@ -177,12 +178,15 @@ namespace FidelityFX
                 _genReactiveDescription.Flags = generateReactiveParameters.flags;
             }
             
+            // Set up the main FSR2 dispatch parameters
+            // The input and output textures are left blank here, as they are already being bound elsewhere in this source file
             _dispatchDescription.Color = null;
             _dispatchDescription.Depth = null;
             _dispatchDescription.MotionVectors = null;
-            _dispatchDescription.Output = null;
             _dispatchDescription.Exposure = null;
             _dispatchDescription.Reactive = null;
+            _dispatchDescription.TransparencyAndComposition = null;
+            _dispatchDescription.Output = null;
             _dispatchDescription.PreExposure = 0;
             _dispatchDescription.EnableSharpening = performSharpenPass;
             _dispatchDescription.Sharpness = sharpness;

Assets/Scripts/Fsr2Pipeline.cs

@@ -260,10 +260,12 @@ namespace FidelityFX
             if (dispatchParams.Reactive.HasValue)
                 commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvReactiveMask, dispatchParams.Reactive.Value);
             
+            if (dispatchParams.TransparencyAndComposition.HasValue)
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvTransparencyAndCompositionMask, dispatchParams.TransparencyAndComposition.Value);
+            
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvReconstructedPrevNearestDepth, UavReconstructedPrevNearestDepth);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvDilatedDepth, UavDilatedDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvTransparencyAndCompositionMask, Resources.DefaultReactive);   // Default reactive mask, as we don't support TCR (yet)
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, SrvPrevDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex ^ 1]);
 
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.Fsr2Constants>());